How do we define the slope of a line?
The coordinate plane
The coordinate plane, labelling each point in the plane with a pair of numbers (coordinates), allows us to
Tag: transformation
What does it mean for two line segments OR triangles OR other subsets of the plane to be “the same shape”?
The concept of “shape”, the concept of “similarity”
The main issues [with TSMs treatment of geometry] may be summarized as follows:
- The high school geometry course cannot be the only place in the K–12 curriculum where definitions, theorems,
